001/* 002 * Copyright (c) 2007-2016 Concurrent, Inc. All Rights Reserved. 003 * 004 * Project and contact information: http://www.cascading.org/ 005 * 006 * This file is part of the Cascading project. 007 * 008 * Licensed under the Apache License, Version 2.0 (the "License"); 009 * you may not use this file except in compliance with the License. 010 * You may obtain a copy of the License at 011 * 012 * http://www.apache.org/licenses/LICENSE-2.0 013 * 014 * Unless required by applicable law or agreed to in writing, software 015 * distributed under the License is distributed on an "AS IS" BASIS, 016 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 017 * See the License for the specific language governing permissions and 018 * limitations under the License. 019 */ 020 021package cascading.flow.planner.iso.expression; 022 023import java.util.Arrays; 024 025import cascading.flow.FlowElement; 026import cascading.flow.planner.PlannerContext; 027import cascading.flow.planner.graph.ElementGraph; 028 029/** 030 * 031 */ 032public class AndElementExpression extends ElementExpression 033 { 034 public static ElementExpression and( ElementExpression... elementMatchers ) 035 { 036 return new AndElementExpression( elementMatchers ); 037 } 038 039 public static ElementExpression and( ElementCapture capture, ElementExpression... elementMatchers ) 040 { 041 return new AndElementExpression( capture, elementMatchers ); 042 } 043 044 ElementExpression[] matchers; 045 046 public AndElementExpression( ElementExpression... matchers ) 047 { 048 this.matchers = matchers; 049 } 050 051 public AndElementExpression( ElementCapture capture, ElementExpression... matchers ) 052 { 053 super( capture ); 054 this.matchers = matchers; 055 } 056 057 @Override 058 public boolean applies( PlannerContext plannerContext, ElementGraph elementGraph, FlowElement flowElement ) 059 { 060 for( ElementExpression matcher : matchers ) 061 { 062 if( !matcher.applies( plannerContext, elementGraph, flowElement ) ) 063 return false; 064 } 065 066 return true; 067 } 068 069 @Override 070 public String toString() 071 { 072 final StringBuilder sb = new StringBuilder( "And{" ); 073 sb.append( Arrays.toString( matchers ) ); 074 sb.append( '}' ); 075 return sb.toString(); 076 } 077 }